How do I animate emission with an audio file?
For convenience later on, I'll add a Value node, which you can connect to the emission strength or any other input.


Set a key on the property, which you want to be "animated" by the sound wave.

In the graph editor, execute Bake Sound to F-Curves.

Adjust the resulting F-Curve with an Envelope modifier, mapping the output from 1 to 10. Or map the input from 0 to 1 and add a multiply node in the cycles material nodes to multiply it with 10.